package ch07.ex71.ex77;

public class CargoBoat {
    int realContent;
    int maxContent;

    public void setMaxContent(int c) {
        maxContent = c;
    }
    public void loading(int m)throws DangerException{
        realContent+=m;
        if (realContent>maxContent){
            realContent-=m;
            throw new DangerException();
        }
        System.out.println("目前装载了"+realContent+"吨货物");
    }
}
